M23.0

Cystic meniscus, unspecified meniscus

Cystic meniscus, anterior horn of medial meniscus

Cystic meniscus, posterior horn of medial meniscus

Cystic meniscus, other medial meniscus

Cystic meniscus, anterior horn of lateral meniscus

Cystic meniscus, posterior horn of lateral meniscus

Cystic meniscus, other lateral meniscus

Derangement of meniscus due to old tear or injury

Other meniscus derangements

Loose body in knee

Chronic instability of knee

Other spontaneous disruption of ligament(s) of knee

Other internal derangements of knee

Unspecified internal derangement of knee